Fixed issue in implementation of #377 -> Added the busy indicator to console inputs
Implemented ticket #378 "Enable tooltip docu of procedures"
Implemented ticket #381 "New string function: 'textparse()'"
Implemented ticket #380 "New matrix function: 'unique()'"
Implemented ticket #377 "Add a busy indicator to the taskbar"
Fixed issue #376 "Closing the application cannot be vetoed"
Implemented ticket #318 "Selection of the editor font, esp. its size"
Fixed issue in implementation of ticket #294
Implemented ticket #360 "Create refactoring tools"
Unversioned layout file